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CY7C68016A-56LFXC Datasheet(PDF) 5 Page - Cypress Semiconductor |
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CY7C68016A-56LFXC Datasheet(HTML) 5 Page - Cypress Semiconductor |
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5 / 62 page  CY7C68013A, CY7C68014A CY7C68015A, CY7C68016A Document #: 38-08032 Rev. *M Page 5 of 62 The FX2LP jump instruction is encoded as follows: If Autovectoring is enabled (AV2EN = 1 in the INTSET-UP register), the FX2LP substitutes its INT2VEC byte. Therefore, if the high byte (“page”) of a jump table address is preloaded at the location 0x0044, the automatically inserted INT2VEC byte at 0x0045 directs the jump to the correct address out of the 27 addresses within the page. 3.8.3 FIFO/GPIF Interrupt (INT4) Just as the USB Interrupt is shared among 27 individual USB interrupt sources, the FIFO/GPIF interrupt is shared among 14 individual FIFO/GPIF sources. The FIFO/GPIF Interrupt, like the USB Interrupt, can employ autovectoring. Table 4 on page 6 shows the priority and INT4VEC values for the 14 FIFO/GPIF interrupt sources. Table 3. INT2 USB Interrupts USB INTERRUPT TABLE FOR INT2 Priority INT2VEC Value Source Notes 1 00 SUDAV Setup Data Available 2 04 SOF Start of Frame (or microframe) 3 08 SUTOK Setup Token Received 4 0C SUSPEND USB Suspend request 5 10 USB RESET Bus reset 6 14 HISPEED Entered high speed operation 7 18 EP0ACK FX2LP ACK’d the CONTROL Handshake 8 1C reserved 9 20 EP0-IN EP0-IN ready to be loaded with data 10 24 EP0-OUT EP0-OUT has USB data 11 28 EP1-IN EP1-IN ready to be loaded with data 12 2C EP1-OUT EP1-OUT has USB data 13 30 EP2 IN: buffer available. OUT: buffer has data 14 34 EP4 IN: buffer available. OUT: buffer has data 15 38 EP6 IN: buffer available. OUT: buffer has data 16 3C EP8 IN: buffer available. OUT: buffer has data 17 40 IBN IN-Bulk-NAK (any IN endpoint) 18 44 reserved 19 48 EP0PING EP0 OUT was Pinged and it NAK’d 20 4C EP1PING EP1 OUT was Pinged and it NAK’d 21 50 EP2PING EP2 OUT was Pinged and it NAK’d 22 54 EP4PING EP4 OUT was Pinged and it NAK’d 23 58 EP6PING EP6 OUT was Pinged and it NAK’d 24 5C EP8PING EP8 OUT was Pinged and it NAK’d 25 60 ERRLIMIT Bus errors exceeded the programmed limit 26 64 27 68 reserved 28 6C reserved 29 70 EP2ISOERR ISO EP2 OUT PID sequence error 30 74 EP4ISOERR ISO EP4 OUT PID sequence error 31 78 EP6ISOERR ISO EP6 OUT PID sequence error 32 7C EP8ISOERR ISO EP8 OUT PID sequence error [+] Feedback |
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